diff --git a/CMakeLists.txt b/CMakeLists.txt
index d260b4d..333bdc9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,123 +1,124 @@
 cmake_minimum_required (VERSION 2.8.8)
 #cmake_policy(SET CMP0053 NEW)
 
 project(bsplines_root Fortran C)
 
 #enable_language(Fortran)
 enable_testing()
 
 option(BSPLINES_USE_MUMPS "Activate the mumps interface" ON)
 option(BSPLINES_USE_LAPACK "Activate the lapack interface" ON)
 option(BSPLINES_USE_PETSC "Activate the petsc interface" ON)
 option(BSPLINES_USE_FFT "Activate the fft interface" OFF)
 option(BSPLINES_USE_SCALAPACK "Activate the scalapack interface" ON)
 
 if(NOT DEFINED BSPLINES_EXAMPLES)
   option(BSPLINES_EXAMPLES "Compiles the examples" ON)
 endif()
+option(BSPLINES_USE_FFT "Activate the fft interface" OFF)
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/cmake")
 
 if(POLICY CMP0074)
   cmake_policy(SET CMP0074 NEW)
 endif()
 
 
 include(CMakeFlagsHandling)
 # Compiler flags for debug/optimization
 if(${CMAKE_Fortran_COMPILER_ID} MATCHES "Intel")
   set(CMAKE_AR ${XIAR})
   add_flags(LANG Fortran TYPE DEBUG -traceback "-check bounds" "-warn unused")
   add_flags(LANG Fortran TYPE RELEASE -xHost)
 elseif(${CMAKE_Fortran_COMPILER_ID} MATCHES "GNU")
   add_flags(LANG Fortran TYPE DEBUG -fbounds-check -fbacktrace)
 endif()
 
 # Installation root directory
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
   set(PREFIX $ENV{PREFIX})
   if(PREFIX)
     set(${CMAKE_INSTALL_PREFIX} ${PREFIX})
   else()
     set(CMAKE_INSTALL_PREFIX ${CMAKE_CURRENT_SOURCE_DIR} CACHE PATH "..." FORCE)
   endif()
   message(STATUS "CMAKE_INSTALL_PREFIX is " ${CMAKE_INSTALL_PREFIX})
 endif()
 
 # Search and load the FUTILS configuration file
 if(NOT TARGET futils)
   find_package(futils PATHS ${FUTILS}/lib/cmake REQUIRED)
 endif()
 
 if(BSPLINES_USE_MUMPS)
   find_package(Mumps REQUIRED)
   set(HAS_MUMPS ${MUMPS_FOUND})
 else()
   set(HAS_MUMPS FALSE)
 endif()
 
 if(BSPLINES_USE_PETSC)
   find_package(PETSc REQUIRED)
   set(HAS_PETSC ${PETSC_FOUND})
 else()
   set(HAS_PETSC FALSE)
 endif()
 
 # Find lapack/blas. Skip it if on CRAY!
 if(CRAY)
   set(BSPLINES_USE_PARDISO OFF)
 endif()
 include(blas)
 
 if(NOT BSPLINES_EXPORT_TARGETS)
   set(BSPLINES_EXPORT_TARGETS bsplines-targets)
 endif()
 
 find_package(MPI COMPONENTS Fortran REQUIRED)
 
 include(GNUInstallDirs)
 
 if(BSPLINES_USE_FFT)
   set(FFT_EXAMPLES ${BSPLINES_EXAMPLES})
   add_subdirectory(fft)
 endif()
 add_subdirectory(pppack)
 add_subdirectory(pputils2)
 add_subdirectory(src)
 
 if(HAS_MUMPS AND BSPLINES_EXAMPLES)
   add_subdirectory(multigrid)
 endif()
 
 if(BSPLINES_EXAMPLES)
   add_subdirectory(examples)
   add_subdirectory(wk)
 endif()
 
 export(TARGETS pppack pputils2 bsplines
   FILE "${CMAKE_BINARY_DIR}/bsplinesLibraryDepends.cmake")
 if(BSPLINES_USE_FFT)
   export(APPEND TARGETS fft
     FILE "${CMAKE_BINARY_DIR}/bsplinesLibraryDepends.cmake")
 endif()
 export(PACKAGE bsplines)
 
 # install configuration files
 if(BSPLINES_EXPORT_TARGETS MATCHES "bsplines-targets")
   install(EXPORT bsplines-targets
     DESTINATION lib/cmake
     )
 
   configure_file(
     ${CMAKE_CURRENT_SOURCE_DIR}/cmake/bsplines-config.cmake.in
     ${CMAKE_CURRENT_BINARY_DIR}/cmake/bsplines-config.cmake @ONLY
     )
   install(FILES
     ${CMAKE_CURRENT_BINARY_DIR}/cmake/bsplines-config.cmake
     DESTINATION lib/cmake
     )
 endif()
 
 # enable packaging with CPack
 include(CPack)